在嵌套的foreach PHP中填充數組

Question

我有以下代碼。 在最后的foreach中，我想在$display數組中添加$last_array和$last2_array作為鍵/值對。 這是我嘗試過的：

$display[] = array($last_array => $last2_array); //doesn't work
print_r($display); //under the loop prints nothing

編碼：

$display=array();//declare the array outside the loop
foreach ($array as $arrays){ 
    foreach ($arrays as $elem) {
        unset($elem['id']); //Removes id key
        unset($elem['idno']); //Removes idno key
        foreach ($elem as $last_array => $last2_array) {
            //code here                       
            #echo $last_array. ": ".$last2_array."<br>";//This prints data, it's not empty.
        }       
        echo "<br>";
    }
}

提前致謝。

Answer 1

$display=array();//declare the array outside the loop
foreach ($array as $arrays){ 
    foreach ($arrays as $elem) {
        unset($elem['id']); //Removes id key
        unset($elem['idno']); //Removes idno key
        foreach ($elem as $last_array => $last2_array) {
          $display[$last_array] = $last2_array;
        }       
    }
}

Answer 2

我建議您對多維數組進行搜索，以更多地了解創建和訪問它們的知識。

$object_id=$array['results'][0]['object_id'];
$display_label=$array['results'][0]['display_label'];

$display = array($object_id => $display_label);
print_r($display);